Before upgrading your system to a new Ubuntu release (i.e. from Ubuntu 11.10 to 13.04), you should probably run ppa-purge ppa:gnome3-team/gnome3 first.

=== Ubuntu 13.04 (Raring) ===

GNOME 3.8 that won't make it into the normal Ubuntu 13.04 repositories. Other parts of GNOME 3.8 are available in the https://launchpad.net/~gnome3-team/+archive/gnome3-staging PPA but beware that many of those components have known regressions from their GNOME 3.6 versions.

You need to run 'sudo apt-get dist-upgrade' to avoid problems. Please read the output before entering 'Y' to make sure important packages won't be removed.

=== Ubuntu 12.10 (Quantal) ===

Parts of GNOME 3.6 that didn't make it into the normal Ubuntu 12.10 repositories.

=== Ubuntu 12.04 (Precise) ===

Parts of GNOME 3.4 that didn't make it into the normal Ubuntu 12.04 repositories.

=== Ubuntu 11.10 (Oneiric) ===

Parts of GNOME 3.2 that didn't make it into the normal Ubuntu 11.10 repositories.

There are no further updates for Oneiric/11.10!

=== Bugs ===

On Raring (13.04) please use 'ubuntu-bug' to report bugs against packages in this PPA